Related Manuals for CHINT NXB-40
Summary of Contents for CHINT NXB-40
- Page 1 NO:2020.04 NXB-40 Miniature Circuit Breaker User Instruction Standard: IEC/EN 60898-1...
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Page 2: Safety Warning
Safety Warning The product can only be installed and maintained by professionals. Installation in any damp, condensed-phase environment with inflammable and explosive gas is forbidden. When the product is being installed or maintained, the power must be switched off. You are prohibited from touching the conductive part when the product is operating. -
Page 3: Purpose Of Use
Purpose of Use The NXB-40 miniature circuit breaker is applicable to circuits with frequency of AC 50/60 Hz, rated voltage up to 230 V and rated current up to 40 A. It provides overload and short circuit protection, and can also be used for infrequent switching of the circuit under normal circumstances. - Page 4 2. On-off indication Green O·OFF I·ON 3. Installation ① ② TH35-7.5 type mounting rail 4. Disassembly ② ①...
- Page 5 5. Wiring: copper wires only Table 2 Copper wire cross-sectional area Rated current In (A) Copper wire cross-sectional area S (mm ) 16, 20 Wiring torque 1.5N·m 12mm 10mm 16mm...
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Page 6: Maintenance
Maintenance 1.Check the circuit breaker on a regular basis during operation; 2.After the circuit breaker cuts off the overload or short-circuit current, the fault should be eliminated before closing the circuit breaker. Table 3 Analysis and troubleshooting of common faults Symptoms Cause analysis Troubleshooting method... - Page 7 QC PASS NXB-40 Miniature Circuit Breaker IEC/EN 60898-1 Check 24 Test date: Please see The packing ZHEJIANG CHINT ELECTRICS CO.,LTD.
- Page 8 NXB-40 Miniature Circuit Breaker User Instruction Zhejiang Chint Electrics Co., Ltd. Add: No.1, CHINT Road, CHINT Industrial Zone,North Baixiang, Yueqing, Zhejiang 325603,P.R.China E-mail: global-sales@chint.com Website: http://en.chint.com...
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